Kempner, Isaac H. (Isaac Herbert), 1873-1967. [Letter from I. H. Kempner to J. M. Sutton, February 28, 1953], letter, February 28, 1953; (https://texashistory.unt.edu/ark:/67531/metapth1198219/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .